Food processor

1. A food processor, comprising a main engine, a heating device, a stirring cup, a cup cover assembly, and a main control board defined in the main engine, wherein:

the stirring cup is mounted on the main engine, and the cup cover assembly covers the stirring cup;

the heating device is configured to heat the stirring cup and electrically is connected to the main control board; and

the cup cover assembly comprises an upper cover, an inner surface of the upper cover defines an anti-overflow detecting element, and the anti-overflow detecting element is electrically connected to the main control board and is an anti-overflow metal inner cover comprising a metal ring extending towards the inside of the stirring cup.

2. The food processor according to claim 1 , wherein the heating device comprises a heat conducting plate and a heating assembly, the heat conducting plate is defined at a bottom of the stirring cup, the heating assembly is defined below the heat conducting plate, and the heating assembly electrically is connected to the main control board; and

the heating assembly is a resistance heating assembly, and the resistance heating assembly is defined at a lower surface of the heat conducting plate;

or, the heating assembly is an electromagnetic heating assembly, the heat conducting plate is a magnetic conducting plate, and the electromagnetic heating assembly faces the magnetic conducting plate.

3. The food processor according to claim 1 , wherein the upper cover defines a feed inlet, and a feed cover is mounted at the feed inlet; and

a sealing retaining ring is defined between a portion of the upper cover extending into the stirring cup and a wall of the stirring cup to seal a cup rabbet of the stirring cup.

4. The food processor of claim 1 , wherein the metal ring extends downwards at a distance H in a range of 0.5 millimeters to 70 millimeters.

5. The food processor of claim 1 , wherein the anti-overflow metal inner cover comprises an annular cover plate, the metal ring extends from an outer periphery of the annular cover plate to an inside of the stirring cup, and the anti-overflow metal inner cover is positioned in the upper cover.

6. The food processor of claim 5 , wherein the annular cover plate defines a plurality of screw holes, the upper cover correspondingly defines screw posts, and the annular cover plate is fixedly connected to the upper cover by screw bolts passing through the screw holes and the screw posts.

7. The food processor of claim 6 , wherein an upper side of the annular cover plate defines a first sealing ring, the first sealing ring is adjacent to an inner periphery of the annular cover plate, a lower side of the metal ring defines a flanging, and a second sealing ring is defined between the flanging and the upper cover.

8. The food processor according to claim 5 , wherein the upper cover is a plastic element, the anti-overflow metal inner cover and the upper cover are in an integrated structure, and the upper cover and the anti-overflow metal inner cover are connected by a secondary injection molding.

9. A food processor, comprising a main engine, a heating device, a stirring cup, a cup cover assembly, and a main control board defined in the main engine, wherein:

the stirring cup is mounted on the main engine, and the cup cover assembly covers the stirring cup;

the heating device is configured to heat the stirring cup and electrically is connected to the main control board; and

the cup cover assembly comprises an upper cover, an inner surface of the upper cover defines an anti-overflow detecting element, and the anti-overflow detecting element is electrically connected to the main control board, wherein the anti-overflow detecting element is an anti-overflow metal detecting piece, and the anti-overflow metal detecting piece attaches to the inner surface of the upper cover, and extends towards the inside of the stirring cup.

10. A food processor, comprising a main engine, a heating device, a stirring cup, a cup cover assembly, and a main control board defined in the main engine, wherein:

the stirring cup is mounted on the main engine, and the cup cover assembly covers the stirring cup;

the heating device is configured to heat the stirring cup and electrically is connected to the main control board; and

the cup cover assembly comprises an upper cover, an inner surface of the upper cover defines an anti-overflow detecting element, and the anti-overflow detecting element is electrically connected to the main control board, wherein the heating device comprises a heat conducting plate and a heating assembly, the heat conducting plate is defined at a bottom of the stirring cup, the heating assembly is defined below the heat conducting plate, and the heating assembly electrically is connected to the main control board; and

the heating assembly is a resistance heating assembly, and the resistance heating assembly is defined at a lower surface of the heat conducting plate;

or, the heating assembly is an electromagnetic heating assembly, the heat conducting plate is a magnetic conducting plate, and the electromagnetic heating assembly faces the magnetic conducting plate, wherein the anti-overflow detecting element is an anti-overflow metal detecting piece, and the anti-overflow metal detecting piece attaches to the inner surface of the upper cover, and extends towards the inside of the stirring cup.

11. The food processor according to claim 9 , wherein the upper cover is a plastic element, the anti-overflow metal detecting piece and the upper cover are in an integrated structure, and the upper cover and the anti-overflow metal detecting piece are connected by a secondary injection molding.

12. The food processor according to claim 1 , wherein the upper cover comprises a main body covering a cup rabbet of the stirring cup, and a mounting part radially protruding from a side of the main body, an electric conductor is defined in the mounting part, one end of the electric conductor is connected to the anti-overflow detecting element, and the other end of the electric conductor electrically is connected to the main control board.

13. The food processor of claim 12 , wherein the end of the electric conductor away from the anti-overflow detecting element defines a conducting rod; and

the stirring cup defines a handle, an upper end of the handle defines an avoiding hole, a conducting needle is defined in the avoiding hole, one end of the conducting needle electrically is connected to the main control board, the other end of the conducting needle exposes from the avoiding hole and abuts against the conducting rod.

14. The food processor according to claim 12 , wherein the mounting part defines a sliding groove, the electric conductor is installed in the sliding groove, an end of the electric conductor passes through the sliding groove to abut against the anti-overflow detecting element, and a first spring is defined in the sliding groove, first spring sleeves around the end of the electric conductor away from the anti-overflow detecting element, and the electric conductor abuts against the anti-overflow detecting element when the first spring is in a compressed state.

15. The food processor according to claim 13 , wherein the anti-overflow detecting element, the electric conductor, and the conducting rod are in an integrated structure.

16. The food processor according to claim 13 , wherein the end of the electric conductor away from the anti-overflow detecting element defines a first induction element; and

the upper end of the handle defines a second induction element, the second induction element is coupled with the first induction element, and the second induction element electrically is connected to the main control board.

17. The food processor according to claim 16 , wherein the anti-overflow detecting element, the electrical conductor, and the first induction element are in an integrated structure.

18. The food processor according to claim 1 , wherein the stirring cup is made of glass, stainless steel, or plastic.